Figure 6.

Simplified schematic representation of the trafficking pathways to and from the cell wall of olive fruit (A) and AZ (B) at the last stage of ripening. The Rab-GTPases likely involved at each step are indicated in red (up-regulated). 1. Synthesis of proteins in endoplasmic reticulum (ER). 2. Synthesis of matrix polysaccharides and assembly of proteins in Golgi and TGN/EE (the trans-Golgi network and early endosomal compartments). 3. Modification of wall elements by secreted enzymes. Pathways to and from the vacuole have been omitted for simplicity. Additional information on the vesicle-trafficking-related genes is presented in Table S3. (ECM: equivalent to the “cell wall” or “apoplast”. PM: plasma membrane).